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Preparation process of anti-cracking concrete

A preparation process and concrete technology, which is applied in the field of concrete, can solve the problems such as batching, paving, forming, cutting and other processes that are difficult to achieve organic integration, so as to increase the loss of concrete slump, easy to obtain raw materials, and convenient construction and use Effect

Inactive Publication Date: 2016-11-09
汤海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of production and preparation of traditional crack-resistant concrete, the quality of the product needs to be improved due to the influence of the process, and it is difficult to achieve an organic combination of batching, paving, molding, cutting and other processes

Method used

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  • Preparation process of anti-cracking concrete

Examples

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Effect test

Embodiment 1

[0025] A preparation process for crack-resistant concrete, comprising the following steps:

[0026] (1) Concrete ratio design, its mass composition is as follows: 100 parts of cement, 80 parts of fine aggregate stones, 100 parts of coarse aggregate stones, 10 parts of rubber particles, 50 parts of fly ash, 12 parts of micro silica fume, 10 parts of amide epichlorohydrin resin, 8 parts of expansion agent, 200 parts of water;

[0027] (2) The mixture is stirred evenly, and the stirring temperature is 15-18°C,

[0028] (3) Concrete pouring: Concrete and high-strength imitation steel fiber mesh are alternately poured into the formwork, and the concrete is troweled in the process; the diameter of the fiber in the high-strength imitation steel fiber mesh is 0.6mm;

[0029] (4) Concrete cutting and polishing: use water grinding method to polish, and add polishing medium.

[0030] Wherein, the composition of mass parts of expansion agent is as follows: 4 parts of iron vitrified mud,...

Embodiment 2

[0036] A preparation process for crack-resistant concrete, comprising the following steps:

[0037] (1) Concrete ratio design, its mass composition is as follows: 120 parts of cement, 100 parts of fine aggregate stones, 120 parts of coarse aggregate stones, 20 parts of rubber particles, 55 parts of fly ash, 15 parts of micro silica fume, poly 12 parts of amide epichlorohydrin resin, 9 parts of expansion agent, 210 parts of water;

[0038] (2) The mixture is stirred evenly, and the stirring temperature is 18-20°C,

[0039] (3) Concrete pouring: Concrete and high-strength imitation steel fiber mesh are alternately poured into the formwork, and the concrete is troweled in the process; the diameter of the fiber in the high-strength imitation steel fiber mesh is 0.8mm;

[0040] (4) Concrete cutting and polishing: use water grinding method to polish, and add polishing medium.

[0041] Among them, the mass parts of the expansion agent are composed as follows: 4.2 parts of ferric vi...

Embodiment 3

[0047] A preparation process for crack-resistant concrete, comprising the following steps:

[0048] (1) Concrete ratio design, its mass composition is as follows: 160 parts of cement, 100 parts of fine aggregate stones, 160 parts of coarse aggregate stones, 40 parts of rubber particles, 65 parts of fly ash, 16 parts of micro silica fume, poly 12 parts of amide epichlorohydrin resin, 10 parts of expansion agent, 250 parts of water;

[0049] (2) The mixture is stirred evenly, and the stirring temperature is 20-25° C.,

[0050] (3) Concrete pouring: Concrete and high-strength imitation steel fiber mesh are alternately poured into the formwork, and the concrete is troweled in the process; the diameter of the fiber in the high-strength imitation steel fiber mesh is 1.2mm;

[0051] (4) Concrete cutting and polishing: use water grinding method to polish, and add polishing medium.

[0052] Wherein, the composition of mass parts of expansion agent is as follows: 4 parts of ferric vit...

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Abstract

The invention relates to the technical field of concrete and particularly relates to a preparation process of anti-cracking concrete. The preparation process comprises the following steps: (1) designing a concrete ratio; (2) uniformly stirring a mixture, wherein the stirring temperature is 15-40 DEG C; (3) pouring concrete: alternatively injecting the concrete and a high-strength steel-imitated fiber net into a template, and carrying out cement plastering treatment in the process; and (4) cutting and polishing the concrete: polishing by adopting a water grinding method, and adding a polishing medium. The preparation method of the anti-cracking concrete, provided by the invention, has the characteristics of easiness of obtaining raw materials, low cost, good performance and the like; all components are reasonably matched, and a high admixture use amount ratio and a low gel material use amount ratio are used as main characteristics; and the concrete which has good workability, high strength, good anti-cracking performance, good anti-seepage performance and long service life and is suitable for a seabed working condition is finally formed.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a preparation process of crack-resistant concrete. Background technique [0002] As we all know, the construction of subsea tunnels is currently the most complicated and highest-standard construction project in transportation construction; harmful cracks are not allowed in the tunnel concrete, and its maximum buried depth is about -40m. Most of the subsea tunnels are poured with factory prefabricated full-section. The concrete poured at one time is about 3400m3, and the design strength is 56d to C50. Since the tunnel concrete structure needs to withstand high-pressure seawater for a long time, higher requirements are put forward for the impermeability, crack resistance and long-term life of the tunnel concrete. [0003] In the process of production and preparation of traditional crack-resistant concrete, the quality of the product needs to be improved due to the influence of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B24/38C04B111/34C04B111/74C04B111/27
CPCC04B28/00C04B40/0039C04B2111/27C04B2111/343C04B2111/74C04B14/02C04B24/24C04B18/08C04B14/062C04B24/281C04B18/04C04B18/023C04B18/12C04B22/144C04B22/145C04B24/085C04B14/4681C04B14/14C04B14/042C04B24/2623C04B24/383C04B2103/0068C04B22/0013C04B22/147
Inventor 汤海涛
Owner 汤海涛
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